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Steam Radiator Air Vent connection size
Hello, I have a single-pipe steam system.
I need to replace the air vents on all of the radiators. (The radiators are only warming up halfway.)
How can I determine what size radiator air vents to purchase?
Attached is a picture of the original radiator air vent. I am assuming these are very old. The brand is "Dole".
The male connection piece measures 3/8". The port hole in the radiator also measures 3/8".
However I can't seem to locate any air vents that are that size. All of them are either 1/2" or 1/8" or 3/4".
How can I determine what connection size air vent to purchase?